Glock 25 Gen IV Trigger Bar

I have a Gen IV G26, UYX-prefix serial number. I never could stand the serrated trigger face that Glock uses in the compact and subcompact pistols, and it seems to aggravate me more as I get older. What smooth face trigger bar/part number is a direct swap into a Gen IV 26? It was my understanding that the Gen IVs were a bit different.